According to Business Insider, former Sen. John Kyl will replace John McCain.<br />Arizona Gov Doug Ducey announced that he will appoint John Kyl to serve in the seat left vacant after Sen John McCain passed away in August.<br />In the past, John Kyl served in the US Senate for 18 years until being replaced by Jeff Flake in 2013<br />Kyl will serve in the role until the end of the year and it will be up to him if he wants to continue. <br />